Electromagnetic actuator for medium voltage circuit breaker

摘要

The actuator has an electromagnet (1) exhibiting a magnet core (2) with a rectangular profile, and a round upper yoke (3) corresponding to the electromagnet. The actuator is placed directly under a vacuum switching chamber of a middle voltage switch without leverage and deviation and acts directly on a contact rod. A permanent magnet is attached to the magnet core, whose magnetizing direction lies parallel to a plane of an air gap. A damping pad is arranged between a lower yoke and the bottom side of the magnet core. An independent claim is also included for a method for manufacturing an electromagnetic actuator.